Tag：modeling
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Time：2021-4-15
Modeling analysis The discussion is based on the case of visitor system Purpose of modeling analysis Analyze which levels, tables and fields the whole data warehouse needs ODS layer: source data layer Docking source data, keep the same granularity as the source data DWD Task: 1. Cleaning. Incomplete data Expired or invalid data 2. Conversion […]
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Time：2021-3-5
Data warehouse Toolbox: an authoritative guide to dimensional modeling,This article is based on this book。 The first official account is:Learn big data in five minutesIn the official account, the “third dimensional e-book” can be obtained by sending “dimensional modeling”. This book is based on the author’s 60 years of practical business environment and summarizes the […]
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Time：2021-1-2
Since didi travel and ant financial services have jointly built sqlflow, they have carried out meaningful cooperation in many aspects. On November 5, 2019, Mr. Gao ziyao, a senior data scientist of Didi, was invited to Tsinghua School of economics and management and came to the class of “business analysis integration practice”, one of the […]
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Time：2020-12-30
Some time ago, ant financial AI technology appeared in the “business analysis integration practice” class of Tsinghua University of economics and management! Professor Gao ziyao, senior data scientist of Didi, gave a wonderful introduction to the students in the class of Tsinghua University Columbia University Business Analysis dual master’s degree program. The protagonist is sqlflow […]
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Time：2020-12-8
Author: logm This paper was originally published at https://segmentfault.com/u/logm/articles , reprint is not allowed~ This paper is a note of MOOC course database system. 1. Overview 2. Data modeling 3. Database design
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Time：2020-11-28
String Transformation 1（Codeforces 659 Div.2 C） Div2 of codeforces is getting more and more difficult, qwq Hang up a link first- https://codeforces.com/contes/1384/problem/c Question surface – a total of several groups of data, each group of data contains a, B two length n string composed of a ~ t, you can select any number of the […]
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Time：2020-11-9
Demo address：http://demo.ineuos.net (Note: self registration) Ineuos independently controllable industrial Internet operating system, providing new solutions The core components include: ineulink, ineukel, ineuview, ineuai, ineuda, ineuapp and ineuar; To provide a basic framework for the construction of industrial Internet platform for small and medium-sized enterprises and integrators; Reduce the cost of upgrading and system maintenance of […]
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Time：2020-10-22
Demo address:https://capricorncd.github.io/blog/dist/three/index.html#/ClockObj Source code:https://github.com/capricorncd/blog/tree/master/demos/three C4D file: clock (r21.207). C4dhttps://github.com/capricorncd/blog/tree/master/c4d technological process C4D modeling export.objfile JS implementation（ Three.js ）In this example, webpack + react is used in the development environment 1、 C4D modeling Here B station has a video tutorial, here will not repeat. Online video tutorial:https://www.bilibili.com/video/BV177411P7d1?p=3 What should be paid attention to when modeling: Modeling: […]
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Time：2020-10-7
A famous Chinese Entrepreneur: “Ma Yun” once mentioned in 2015 that the Internet is about to transfer from it to DT. What is DT? The so-called DT is data plus technology. Today is an era of big data. Big data runs through our basic necessities of life. It can be said that big data is […]
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Time：2020-9-14
From the batch crawling of competing products at station B to the information leakage of Huazhu group; from the massive malicious occupation of seats by Donghai airlines to the Ma cellular tourism website incident; from the daily earning of million yuan by the access platform to the outbreak of e-commerce risks on November 11,… According […]
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Time：2020-9-7
ACM SIGKDD (International Conference on data mining and knowledge discovery, KDD) is the top international conference in the field of data mining. The search advertising algorithm team of meituan to store advertising platform and the University of Chinese Academy of Sciences jointly set up a team named “aster”. They participated in debiasing, autograph and multimodalities […]
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Time：2020-8-31
Author Xiao Yi, senior technical expert of entertainment Focus on the Alibaba cloud primary official account, reply to the framework to see clear knowledge map! Introduction:What is the architecture diagram? Why draw an architecture diagram? How to draw a good architecture diagram? What are the methods? Starting from the definition of architecture, this paper shares […]
